The world's oceans play a role in reducing global warming by ________
A) absorbing surplus heat energy
B) increasing oceanic primary productivity
C) moving carbon dioxide and nutrients from the deep ocean to the surface ocean
D) removing carbon dioxide and sequestering carbon dioxide above the thermocline
E) trapping carbon dioxide in sea ice
A
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A student commented, "A metamorphic rock must have a greater relative age than a sedimentary rock." Is the student using the term "relative age" here in the correct context, and why or why not?
A) No. Relative age must compare the age of at least three things. B) Yes. The ages of the rocks are ordered in relation to each other. C) No. Relative age should state a specific number of years in which the event occurred. D) Yes, the term is used in the correct context, however knowing how long ago these types of rocks formed would be useful.
What size of particle is usually the first to be set in motion by wind?
A)silt B)clay C)sand D)pebble E)boulder
What is exponential growth?
• Growth that occurs at a constant rate • Growth that is logarithmic in nature • Growth that occurs as a constant percentage of the existing amount • Growth that doubles the existing number
How many amino acids have acidic side chains?
A) 1 B) 2 C) 3 D) 4